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Best way to give a variable a default value (simulate Perl ||, ||= )
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In PHP 7 we finally have a way to do this elegantly. It is called the Null coalescing operator. You can use it like this:
$name = $_GET['name'] ?? 'john doe';
This is equivalent to
$name = isset($_GET['name']) ? $_GET['name'...
How to check whether an array is empty using PHP?
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An empty array is falsey in PHP, so you don't even need to use empty() as others have suggested.
<?php
$playerList = array();
if (!$playerList) {
echo "No players";
} else {
echo "Explode stuff...";
}
// Output is: No players
PHP's empty()...
How to remove the first character of string in PHP?
How to use PHP , Remove the first character :
13 Answers
13
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Can I extend a class using more than 1 class in PHP?
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No limitations as far as I know, PHP is a very permissive language for little hacks like this. :) As others have pointed out, it's not the proper OOP way of doing it though.
– Franck
Dec 10 '08 at 18:58
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'AND' vs '&&' as operator
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+1: this should be made loud and clear in PHP documentation, or PHP should change and give same precedence to these operators or DEPRECATE and or once for all. I saw too many people thinking they are exactly the same thing and the answers here are more testimonials.
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Want to exclude file from “git diff”
I am trying to exclude a file ( db/irrelevant.php ) from a Git diff. I have tried putting a file in the db subdirectory called .gitattributes with the line irrelevant.php -diff
and I have also tried creating a file called .git/info/attributes containing db/irrelevant.php .
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PHP Sort a multidimensional array by element containing date
...compare")), so that usort() knows it's a class function/method. See also: php.net/manual/en/…
– Ferdinand Beyer
May 26 '10 at 16:26
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is_file or file_exists in PHP
...xists in directory or false if file not exists as I check in 2020 might be php version update it
– heySushil
Mar 29 at 16:43
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Determining Referer in PHP
...nd(), TRUE);
$_SESSION['token'] = $token;
$url = "http://example.com/index.php?token={$token}";
Then the index.php will look like this:
if(empty($_GET['token']) || $_GET['token'] !== $_SESSION['token'])
{
show_404();
}
//Continue with the rest of code
I do know of secure sites that do the...
How to get last key in an array?
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PHP's built-in functions were built by extreme nerds. Do not try to recreate those functions. The odds are that you make something far slower than the original. Unless you are some sort of evil wizard, of couse.
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